Catheter-type tampon production equipment and production process

Abstract

The present invention relates to a catheter-type tampon production device, which is used to produce tampons. The tampon includes a push tube and an absorbent body slidably disposed on the push tube. The push tube includes an inner tube and an outer tube sleeved on the outer wall of the inner tube. The inner tube is slidable on the outer tube. The absorbent body is slidably disposed within the outer tube. The inner tube pushes the absorbent body to slide. The device includes an absorbent body forming device, an absorbent body compression device, an applying device, and an outer tube head forming device sequentially disposed on a frame. The present invention relates to the field of disposable sanitary product production, realizes fully automated tampon production, improves production efficiency, saves labor costs, and solves the technical problems of low automation and low production efficiency of catheter-type tampons.

Description

Technical Field

[0001] The present invention relates to the field of disposable sanitary product production, and in particular to a catheter-type tampon production device and a production process. Background Art

[0002] Tampons, also known as sanitary plugs, are cylindrical cotton items primarily made of cotton, synthetic fibers, or a blend of the two. They range in diameter from 1 cm to 1.9 cm and have a cotton cord (drawstring) attached to the end. Tampons are primarily made of cotton, synthetic fibers, or both. They are inserted into the vagina during menstruation to absorb menstrual blood. Currently, women in China are gradually accepting the use of tampons, and their market share is slowly increasing compared to traditional sanitary napkins. Most of the domestic equipment for producing tampons is semi-finished product processing, and the sanitary napkin absorbent core is imported from abroad. The initial products were only sold with plastic film outer packaging. This type of product is backward, unhygienic and has low profits. Later, some processing plants began to produce tampons with catheters, adding catheters to the structure, making the product more hygienic and providing better user experience. However, the current equipment remains on the production line assembly machine, which pre-processes the sanitary napkin absorbent, catheter, and cotton thread, and completes the product assembly on the assembly line manually or by robots. Although this product has been improved to a certain extent, the equipment is still insufficient in terms of automation and production capacity. The product safety and experience cannot be guaranteed, the production efficiency is low, and the production cost is high.

[0003] Chinese Patent Application No. 201610257113.9 discloses an automatic assembly machine for producing catheter-type tampons, comprising a base, an assembly platform, a controller, a first manipulator, a second manipulator, a third manipulator, a rotating manipulator, a first barrel, a second barrel, and a third barrel. A bracket is provided on one side of the base, on which the controller is mounted. A rotatable assembly platform is mounted in the center of the upper surface of the base. The first, second, and third manipulators are distributed around the assembly platform. The first, second, and third manipulators are fed by the first, second, and third barrels, respectively. A rotating manipulator is provided on one side of the base for removing the assembled tube. While this device can sequentially assemble the small, medium, and large tubes used to produce tampons into a single unit, achieving partial automation of assembly, some of the processes require manual operation, resulting in a low degree of automation. The use of multiple manipulators for assembly complicates the structure, resulting in high manufacturing and maintenance costs. Summary of the Invention

[0004] Therefore, in order to solve the above problems, the present invention proposes a catheter-type tampon production device and production process, which solves the technical problems of low automation and low production efficiency of catheter-type tampons.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A catheter-type tampon production device is used to produce tampons, the tampon comprising a push tube and an absorbent body slidably mounted on the push tube, the push tube comprising an inner tube and an outer tube sleeved on the outer wall of the inner tube, the inner tube slidably mounted on the outer tube, the absorbent body slidably mounted within the outer tube, the inner tube pushing the absorbent body to slide, and the device comprising an absorbent body forming device, an absorbent body compression device, an applying device, and an outer tube head forming device sequentially mounted on a frame;

[0007] The absorbent body forming device includes a feeding mechanism, a pressing roller mechanism, a folding mechanism, a hot pressing mechanism, a first driving mechanism for driving the spunbond non-woven fabric to be conveyed, and a cutting roller mechanism, which are sequentially arranged on a frame. The first driving mechanism includes a first clamping roller and a second clamping roller rotatably arranged on the frame, two first driving motors that respectively drive the first clamping roller and the second clamping roller to rotate, the pressing roller mechanism includes an upper pressing roller and a lower pressing roller rotatably arranged on the frame, a second driving mechanism that drives the upper pressing roller and the lower pressing roller to rotate, at least one pressing knife is provided on the upper pressing roller, the cutting roller mechanism includes two cutting rollers rotatably arranged on the frame, a second driving motor that drives the cutting roller to rotate, and the cutting roller is provided with a cutting knife;

[0008] The absorbent body compression device includes a carrier device and an extrusion device, the carrier device includes a chassis fixed to a frame, a first rotating disk rotatably arranged on the chassis, and a third drive motor driving the first rotating disk to rotate, the first rotating disk is provided with a plurality of hollow circular tubes, the extrusion device includes a telescopic mechanism provided on the frame, and an extrusion part connected to the telescopic end of the telescopic mechanism, the extrusion part can squeeze the absorbent body in the hollow circular tube, the chassis seals one end of the hollow circular tube, the chassis is provided with a discharge port, the frame is provided with a propulsion mechanism at the discharge port, the end of the propulsion mechanism is provided with a propulsion part, the propulsion part can pass through the hollow circular tube and the discharge port to push the absorbent body into the push tube;

[0009] The applying device includes a second rotating disk rotatably arranged on the frame, a fourth driving motor driving the second rotating disk to rotate, and at least one clamping mechanism arranged on the second rotating disk for clamping the push tube;

[0010] The outer tube head forming device comprises a heat pressing device and a cooling device arranged on the frame.

[0011] Further:

[0012] The extrusion part is made of heat-conducting material and is connected to a heating device.

[0013] A trumpet-shaped insertion port is provided on the top of the hollow circular tube.

[0014] The first rotating disk and the second rotating disk are arranged horizontally.

[0015] The outer tube head is heated and formed into an arc-shaped structure.

[0016] The cooling device is a fan.

[0017] The present invention also provides a production process based on the above-mentioned catheter-type tampon production equipment, comprising the following steps:

[0018] (1) Forming of the absorbent body: the first driving mechanism drives the spunbond non-woven fabric to be transported, the feeding mechanism feeds the polymer material onto the spunbond non-woven fabric, and the absorbent body is formed on the spunbond non-woven fabric; the pressing roller mechanism flattens and compacts the absorbent core on the spunbond non-woven fabric, and at the same time, the pressing knife on the upper pressing roller cuts the absorbent body, forming at least one guide groove on the absorbent body, and the guide groove is arranged along the length direction; the absorbent body is folded by the folding mechanism, and the absorbent body is folded along the center line of the length direction. After folding, the ends of the absorbent body are fixed by the hot pressing mechanism so that the guide groove of the absorbent body is located inside the absorbent body; the absorbent body is cut into long strips by the cutting roller mechanism;

[0019] (2) The absorbent is applied to the push tube: the third driving motor drives the hollow circular tube to rotate. When the hollow circular tube stops, one of the hollow circular tubes is located at the corresponding position of the cutting roller mechanism, and the long strip absorbent can be directly fed into the hollow circular tube after cutting. The other hollow circular tube is located at the extrusion device. The extrusion part pushes the absorbent of the hollow circular tube into the hollow circular tube for extrusion molding, so that the absorbent is formed into a cylindrical shape. Another hollow circular tube is located at the discharge port. The propulsion part passes through the hollow circular tube and the discharge port to push the absorbent into the push tube.

[0020] (3) Forming of tampon: The hot pressing device presses the outer tube head into an arc shape, and the cooling device cools the outer tube head to form the tampon.

[0021] Further:

[0022] After step (3), the clamping mechanism rotates to the packaging machine and releases the formed tampons to the packaging machine for packaging.

[0023] The pressing knife makes the depth of the guide groove different. The closer the guide groove is to the inner tube, the smaller the depth is. The guide groove extends from the end away from the inner tube to the absorbent body. The length of the guide groove is one-third to two-thirds of the length of the absorbent body.

[0024] By adopting the above technical solution, the beneficial effects of the present invention are:

[0025] The absorbent body of the present invention can realize the automatic production of sanitary tampons through the absorbent body forming device, the absorbent body compression device, the applying device, and the outer tube head forming device, thereby saving labor costs and improving production efficiency; the pressing knife on the upper pressing roller cuts the absorbent body, and forms at least one guide groove on the absorbent body. The guide groove not only has the function of buffering the liquid, but also is conducive to the diversion of the liquid, which is conducive to the rapid diversion of the liquid to various parts of the absorbent body, speeding up the absorption speed of the absorbent body, reducing the use time of the sanitary napkin, and various parts of the absorbent body can fully absorb the liquid, thereby improving the use rate of the absorbent body and preventing the liquid from flowing out of the absorbent body and infecting other parts. position; further, the extrusion part is connected to a heating device, and the extrusion part can heat the absorbent body. The insertion port is trumpet-shaped, which is conducive to the placement of the freshly cut absorbent body in the insertion port. At the same time, it is conducive to the extrusion part to insert the long strip into the hollow circular tube; further, the head of the outer tube is heated and formed into an arc structure, which is convenient for pushing into the vagina for use and reducing pain; further, the depth of the guide groove is different, and the closer the guide groove is to the inner tube, the smaller the depth is. This structure is not only conducive to liquid diversion and increases the amount of liquid absorbed by the absorbent body, but the length of the guide groove is one-third to two-thirds of the length of the absorbent body to prevent liquid from flowing into the inner tube through the guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 It is a structural diagram of the pressing roller mechanism;

[0028] Figure 3 It is a structural schematic diagram of the carrier device;

[0029] Figure 4 is a schematic diagram of the structure of another state of the carrier device;

[0030] Figure 5 is a schematic structural diagram of an application device;

[0031] Figure 6 It is a schematic diagram of the structure of a tampon;

[0032] Figure 7 It is a structural diagram of the tampon in use;

[0033] Figure 8 is a cross-sectional view of the absorber;

[0034] Figure 9 This is a cross-sectional view of the absorber from another angle. DETAILED DESCRIPTION

[0035] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0036] refer to Figures 1 to 9The present embodiment provides a catheter-type tampon production device for producing tampons 1. The tampon 1 includes a push tube 11 and an absorbent body 12 slidably disposed on the push tube 11. The push tube 11 includes an inner tube 111 and an outer tube 112 sleeved on the outer wall of the inner tube 111. The head of the outer tube 112 is petal-shaped. The inner tube 111 can slide on the outer tube 112. The absorbent body 12 is slidably disposed in the outer tube 112. The inner tube 111 pushes the absorbent body 12 to slide. The device includes an absorbent body forming device, an absorbent body compression device, an applying device 6, and an outer tube head forming device, which are sequentially arranged on a frame.

[0037] The absorbent body forming device includes a feeding mechanism 21, a pressing roller mechanism 22, a folding mechanism 23, a hot pressing mechanism 24, a first driving mechanism 25 for driving the spunbond non-woven fabric 20 to be transported, and a cutting roller mechanism 26, which are sequentially arranged on the frame. The first driving mechanism 25 includes a first clamping roller and a second clamping roller rotatably arranged on the frame, two first driving motors that respectively drive the first clamping roller and the second clamping roller to rotate, the pressing roller mechanism 22 includes an upper pressing roller 221 and a lower pressing roller 222 rotatably arranged on the frame, a second driving mechanism 223 that drives the upper pressing roller 221 and the lower pressing roller 222 to rotate, three pressing knives 224 are provided on the upper pressing roller 221, and the cutting roller mechanism 26 includes two cutting rollers rotatably arranged on the frame, a second driving motor that drives the cutting roller to rotate, and a cutting knife is provided on the cutting roller;

[0038] The absorbent body compression device includes a carrier device 3 and an extrusion device 4. The carrier device 3 includes a chassis 31 fixed to a frame, a first rotating disk 32 rotatably arranged horizontally on the chassis 31, and a third drive motor 33 that drives the first rotating disk 32 to rotate. The first rotating disk 32 is provided with a plurality of hollow circular tubes 34, and a trumpet-shaped insertion port 35 is provided at the top of the hollow circular tube 34. The extrusion device 4 includes a telescopic mechanism provided on the frame and an extrusion portion connected to the telescopic end of the telescopic mechanism. The extrusion portion can extrude the absorbent body 12 in the hollow circular tube 34. The extrusion portion is made of heat-conducting material and is connected to a heating device. The chassis 31 seals one end of the hollow circular tube 34. A discharge port 310 is provided on the chassis 31. A propulsion mechanism 5 is provided on the frame at the discharge port 310. A propulsion portion is provided at the end of the propulsion mechanism 5. The propulsion portion can pass through the hollow circular tube 34 and the discharge port 310 to push the absorbent body 12 into the push tube 11.

[0039] The applying device 6 includes a second rotating disk 61 rotatably mounted horizontally on the frame, a fourth driving motor 62 for driving the second rotating disk 61 to rotate, and a plurality of clamping mechanisms 63 mounted on the second rotating disk 61 for clamping the push tube 11.

[0040] The outer tube head forming device includes a heat pressing device 7 and a cooling device 8 arranged on the frame.

[0041] The heat pressing mechanism 24 , the cutting roller mechanism 26 , and the second driving mechanism 223 are well-known devices and will not be described in detail herein.

[0042] The above-mentioned unloading mechanism 21 can unload polymer materials and is a well-known device, which will not be described in detail here.

[0043] After the above-mentioned absorbent body 12 is folded, the middle part of the absorbent body 12 is usually compacted, and the guide groove 120 can guide the liquid; a hollow cavity can also be formed in the middle part of the absorbent body 12, and the cavity is connected to the guide groove 120, which can enhance the liquid diversion effect, and the amount of liquid absorbed by the absorbent body 12 becomes smaller, which is set according to the specific situation.

[0044] The number of the pressing blades 224 can be one, two, three or even more. The number of the guide grooves 120 is the same as the number of the pressing blades 224 and is set according to specific circumstances.

[0045] The cooling device 8 is a fan or other cooling device, which is a well-known device and will not be described in detail here.

[0046] The clamping mechanism 63 can clamp the push tube 11 and is a well-known device, which will not be described in detail here.

[0047] The above-mentioned heating device can adopt a heating rod, a heating tube or other heating devices, which are not shown in the figure and are well-known devices and will not be described in detail here.

[0048] The push tube 11 is a well-known device and will not be described in detail here.

[0049] The telescopic mechanism may be a cylinder, and the propulsion mechanism 5 may also be a cylinder to push the propulsion part to move. These are well-known structures and will not be described in detail here.

[0050] The heat pressing device 7 for pressing the end of the outer tube 112 into a curved surface structure is a well-known device and will not be described in detail here.

[0051] The present invention also provides a production process based on the above-mentioned catheter-type tampon 1 production device, comprising the following steps:

[0052] (1) Forming of the absorbent body 12: The first driving mechanism 25 drives the spunbond non-woven fabric 20 for transportation, the unloading mechanism 21 unloads the polymer material onto the spunbond non-woven fabric 20, and the absorbent body 12 is formed on the spunbond non-woven fabric 20; the pressing roller mechanism 22 flattens and compacts the absorbent core on the spunbond non-woven fabric 20, and at the same time, the pressing knife 224 on the upper pressing roller 221 cuts the absorbent body 12, forming three guide grooves 120 on the absorbent body 12. The guide grooves 120 are arranged along the length direction, and the pressing knife 224 makes the depth of the guide grooves 120 different. The closer 120 is to the inner tube 111, the smaller the depth. The guide groove 120 extends from the end away from the inner tube 111 into the absorbent body 12. The length of the guide groove 120 is one-third to two-thirds of the length of the absorbent body 12. The absorbent body 12 is folded by the folding mechanism 23 along the center line of the longitudinal direction. After folding, the ends of the absorbent body 12 are fixed by the hot pressing mechanism 24 so that the guide groove 120 of the absorbent body 12 is located inside the absorbent body 12. The absorbent body 12 is cut into long strips by the cutting roller mechanism 26.

[0053] (2) The absorbent body 12 is applied to the push tube 11: the third driving motor 33 drives the hollow circular tube 34 to rotate. When the hollow circular tube 34 stops, one of the hollow circular tubes 34 is located at the corresponding position of the cutting roller mechanism 26, and the long strip absorbent body 12 after cutting can be directly fed into the hollow circular tube 34. The other hollow circular tube 34 is located at the extrusion device 4. The extrusion part pushes the absorbent body 12 of the hollow circular tube 34 into the hollow circular tube 34 for extrusion molding, so that the absorbent body 12 is formed into a cylindrical shape. Another hollow circular tube 34 is located at the discharge port 310. The propulsion part passes through the hollow circular tube 34 and the discharge port 310 to push the absorbent body 12 into the push tube 11.

[0054] (3) Forming of the tampon 1: The hot pressing device 7 presses the head of the outer tube 112 into an arc shape, and the cooling device 8 cools the head of the outer tube 112, and the tampon 1 is formed.

[0055] (4) The clamping mechanism rotates to the packaging machine, and releases the formed tampon 1 to the packaging machine for packaging.

[0056] The packaging machine of the present invention is a well-known device and will not be described in detail here. The packaging machine may also be omitted and may be configured according to specific circumstances.

[0057] Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined in the appended claims, and all such changes are within the scope of protection of the present invention.

Claims

1. A catheter-type tampon production device for producing tampons, wherein the tampon comprises a push tube and an absorbent body slidably mounted on the push tube, the push tube comprising an inner tube and an outer tube sleeved on the outer wall of the inner tube, the inner tube slidably mounted on the outer tube, the absorbent body slidably mounted within the outer tube, and the inner tube pushes the absorbent body to slide, characterized in that: It includes an absorbent body forming device, an absorbent body compressing device, an applying device, and an outer tube head forming device which are sequentially arranged on a frame; The absorbent body forming device includes a feeding mechanism, a pressing roller mechanism, a folding mechanism, a hot pressing mechanism, a first driving mechanism for driving the spunbond non-woven fabric to be conveyed, and a cutting roller mechanism, which are sequentially arranged on a frame. The first driving mechanism includes a first clamping roller and a second clamping roller rotatably arranged on the frame, two first driving motors that respectively drive the first clamping roller and the second clamping roller to rotate, the pressing roller mechanism includes an upper pressing roller and a lower pressing roller rotatably arranged on the frame, a second driving mechanism that drives the upper pressing roller and the lower pressing roller to rotate, at least one pressing knife is provided on the upper pressing roller, the cutting roller mechanism includes two cutting rollers rotatably arranged on the frame, a second driving motor that drives the cutting roller to rotate, and the cutting roller is provided with a cutting knife; The absorbent body compression device includes a carrier device and an extrusion device, the carrier device includes a chassis fixed to a frame, a first rotating disk rotatably arranged on the chassis, and a third drive motor driving the first rotating disk to rotate, the first rotating disk is provided with a plurality of hollow circular tubes, the extrusion device includes a telescopic mechanism provided on the frame, and an extrusion part connected to the telescopic end of the telescopic mechanism, the extrusion part can squeeze the absorbent body in the hollow circular tube, the chassis seals one end of the hollow circular tube, the chassis is provided with a discharge port, the frame is provided with a propulsion mechanism at the discharge port, the end of the propulsion mechanism is provided with a propulsion part, the propulsion part can pass through the hollow circular tube and the discharge port to push the absorbent body into the push tube; The applying device includes a second rotating disk rotatably arranged on the frame, a fourth driving motor driving the second rotating disk to rotate, and at least one clamping mechanism arranged on the second rotating disk for clamping the push tube; The outer tube head forming device comprises a heat pressing device and a cooling device arranged on the frame.

2. The catheter-type tampon production equipment according to claim 1, characterized in that: The extrusion part is made of heat-conducting material and is connected to a heating device.

3. The catheter-type tampon production equipment according to claim 1, characterized in that: A trumpet-shaped insertion port is provided on the top of the hollow circular tube.

4. The catheter-type tampon production equipment according to claim 1, characterized in that: The first rotating disk and the second rotating disk are arranged horizontally.

5. The catheter-type tampon production equipment according to claim 1, characterized in that: The outer tube head is heated and formed into an arc-shaped structure.

6. The catheter-type tampon production equipment according to claim 1, characterized in that: The cooling device is a fan.

7. The catheter-type tampon production equipment according to claim 1, characterized in that: The inner tube and the outer tube are both made of PP material.

8. A production process for a catheter-type tampon production device according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) Forming of the absorbent body: the first driving mechanism drives the spunbond non-woven fabric to be transported, the feeding mechanism feeds the polymer material onto the spunbond non-woven fabric, and the absorbent body is formed on the spunbond non-woven fabric; the pressing roller mechanism flattens and compacts the absorbent core on the spunbond non-woven fabric, and at the same time, the pressing knife on the upper pressing roller cuts the absorbent body, forming at least one guide groove on the absorbent body, and the guide groove is arranged along the length direction; the absorbent body is folded by the folding mechanism, and the absorbent body is folded along the center line of the length direction. After folding, the ends of the absorbent body are fixed by the hot pressing mechanism so that the guide groove of the absorbent body is located inside the absorbent body; the absorbent body is cut into long strips by the cutting roller mechanism; (2) The absorbent is applied to the push tube: the third driving motor drives the hollow circular tube to rotate. When the hollow circular tube stops, one of the hollow circular tubes is located at the corresponding position of the cutting roller mechanism, and the long strip absorbent can be directly fed into the hollow circular tube after cutting. The other hollow circular tube is located at the extrusion device. The extrusion part pushes the absorbent of the hollow circular tube into the hollow circular tube for extrusion molding, so that the absorbent is formed into a cylindrical shape. Another hollow circular tube is located at the discharge port. The propulsion part passes through the hollow circular tube and the discharge port to push the absorbent into the push tube. (3) Forming of tampon: The hot pressing device presses the outer tube head into an arc shape, and the cooling device cools the outer tube head to form the tampon.

9. The production process of the catheter-type tampon production equipment according to claim 8, characterized in that: After step (3), the clamping mechanism rotates to the packaging machine and releases the formed tampons to the packaging machine for packaging.

10. The production process of the catheter-type tampon production equipment according to claim 8, characterized in that: The pressing knife makes the depth of the guide groove different. The closer the guide groove is to the inner tube, the smaller the depth is. The guide groove extends from the end away from the inner tube to the absorbent body. The length of the guide groove is one-third to two-thirds of the length of the absorbent body.

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